class_docstr: Metadata about a metric.
  
  Super useful when plotting it.
code: def __repr__(self) -> str:
      return self.name
  
file_path: GPflow/benchmark/metric_api.py
imports: from dataclasses import dataclass
  from enum import Enum
  from typing import Any, Optional
  from benchmark.registry import Named, Registry
label_desc: Use image node_id 1 for calling the Metric obj's underlying member method code with example usage: obj.__repr__() and returns: self